769240019 has 2 divisors, whose sum is σ = 769240020. Its totient is φ = 769240018.

The previous prime is 769240007. The next prime is 769240049. The reversal of 769240019 is 910042967.

It is a weak prime.

It is an emirp because it is prime and its reverse (910042967) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769240019 is a prime.

It is a super-2 number, since 2×769240019² = 1183460413662240722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (769240049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384620009 + 384620010.

It is an arithmetic number, because the mean of its divisors is an integer number (384620010).

Almost surely, 2^769240019 is an apocalyptic number.

769240019 is a deficient number, since it is larger than the sum of its proper divisors (1).

769240019 is an equidigital number, since it uses as much as digits as its factorization.

769240019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 769240019 is about 27735.1765633464. The cubic root of 769240019 is about 916.2639996446.

The spelling of 769240019 in words is "seven hundred sixty-nine million, two hundred forty thousand, nineteen".